Method of forming a tapered plate member



Jan.' ro, 192s.'

w. c. s. MAYs 1656123 METHOD OF FORMING A TAPERED PLATE MEMBER Filed Anvil 8, 1927 J @y 7 `(/0//26 6*. 4m/ Mmm ATTORNEYS.

patented Jan. 10, 1928.

UNITED STATES PATENT OFFICE.

"WILLIAM CLARKE S. MAYS, 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR 'llltl' MAYS MANUFACTURING CO., INC., 0F IROVIDENCE, RHODE ISLAND, A Utili-DDRAM TIONT 0F RHDE ISLAND.

METHD OF FORMING A TAPERED PLATE MEMBER.

Application filed April S, 1927. Serial No. 182,004.

This invention relates to a method of torming a member of uneven thickness throughout its length which is plated with a pren clous metal; and has for its object to provide H a method by which the precious metal plate ot the member, such as a lever for selliiilling fountain pens, may be of even thickness throughout the length of the member.

With these and other objects in view, the

lll invention consists of certain novel features o construction as will be more fully described, and particularly pointed out in the appended claims.

ln the accompanying drawings:

Figure 1 is an elevation showing the Ylountain pen with a leverl ior operating the sack within the saine mounted thereon.

Figure Q. is a perspective view of the tiret step in the operation of forming a plated 'lill lever.

Figure tl is a perspective view of the blank.

Figure a is a sectional view a'l'ter a portion oit the base metal has been removed.

Figure 5 shows the lever alter being struck with a drop hammer.

Figure 6 is a perspective view oit the linished lever. i

Figure i" is a central sectional view of the to lever 'termed by the old method ot making the same and showing the uneven thickness olf the plate stock.

lt has been found in practice in the making oll gold plated material which is to be to reduced in dimension by forming a taper or the like that the gold plate is reduced in 'thickness as well as the reducing in thickness ot the base metal which results in the gold becoming reduced as it approaches the taw pered end so as to entirely disappear 'from the base metal and leave the same exposed or the gold is so thinned at the tapered end as to bec-orne worn oli with little use leaving the base metal exposed, to tarnish and in W order to avoid the thinning oit the gold itil plate as a taper is formed on a plated lever,

or the like, l have cut away or removed the base metal at the tapered or thinned portion and then by striking the blank with a drop al) hammer to elongate and lorm the same, the stock is bent or so formed that the gold plate is oit a uniform thickness throughout the length ot the lever; and the lfollowing is a detailed description of the present method by which I form a lever having these desired results:

With reference to the drawings, l0 des ignates the base metal to which is soldered a strip of precious metal 11, such as gold or the like which is then rolled down to suitu able size effecting a corresponding or prou portional reduction of the gold and the base metah After the same has been rolled 'to the thickness desired a blank, as illustrated in Figure 3, is formed oit the required length and from this blank there is removed as at 12 a portion ot the base metal to cause the same to be tapered. on the back at one end 13, as illustrated in Figure fl. l/lith the blank thus cut away I strike the same with a drop hammer which elongatos the samej as illustrated in Figure o, and at 'the same time forms the base metal into the shape illustrated in Figure 5 with its back surface lll in .substantially a single plane and the precious metal plate 11 being disposed in dierent planes being ol substantially even thickness throughout the length of the nieniber from the thick end 15 oit the lever to the narrower end 13 olI the same. Alter the lever is thus 'formed with the gold plate oi even thickness throughout its lengthy it is drilled as at 16 to receive its pivotal mount ing and cut away as at 17 to further adapt it for use in the connection with a fountain pen 1S, as illustrated in Figure 1, it being understood that the gold plate is on the outer or iront surface ol the lever to ornament the same and prevent it from tarnishing.

Figure 7 illustrates a lever iormed by the method oli drawing the plate 11 and base metal 10 Without removing the base instal which results in the thinning ol the plate as at 2O with an entire absence ol? the gold as at 19 to expose the base metal. tluch a method of forming a lever with the plating of uneven thickness throughout its length is undesirable and avoided by the present method ot construction.

I have provided an improved method olf' Jforming a lever for operating the sack ol* a. fountain pen whereby the gold plate may be of evenY thickness throughout the length 'lll titi

till

liti

of the lever to better resist wear on the f tapered end and present an attractive untarnished appearance throughout the life olf the lever.

Having thus described one illustrative embodiment of my invention and the best mode known to me for carrying out my method, I desire it to be understood thatl although specific terms are employed, they are used in a generic and descriptive sense and not for the purpose of limitation, the scope of the invention being defined and limited only by the terms of the appended claims.

I claim:

l.V A method of forming a gold plate lever of uneven thickness throughout its length, which includes soldering theV gold plate to the base metal body, rolling the plated 'body to the desired thickness, cutting a blankl` removing a portion of the base met-al, striking the blank in a drop hammer to cause the blank to become elongatedv and thinner in one part of its length than the other with the gold plate remaining substantially the same thickness throughout the length of the lever. Y

2. A method of forming a gold plate lever tapered at one end for a self filling fountain pen, which includes cutting a blank of uni form thickness having rolled gold plate, cutting away the base metal ou the back ot the lever at one end ot the blank, striking the blank to form the back ot its base metal substantially in a single plane and the front gold plate of substantially the same thickness throughout its length with the lever substantially narrower' at one end than the other.

3. A method of forming a gold plate lever of uneven thickness throughout its length, which includes cutting a blank ol uniform thickness having gold plate, removing a portion of the base metal, striking the blank to elongate the same and moving the gold plate adjacent the removed portion out of the plane in which it first lies without materially changing the thickness ot the gold plate throughout the length ot the lever.

In testimony whereof I allix my signature.

WILLIAM CLARKE S. MAYS. 

